CN103982731A - Maintenance-free self-sealing sleeve compensator - Google Patents
Maintenance-free self-sealing sleeve compensator Download PDFInfo
- Publication number
- CN103982731A CN103982731A CN201410162130.5A CN201410162130A CN103982731A CN 103982731 A CN103982731 A CN 103982731A CN 201410162130 A CN201410162130 A CN 201410162130A CN 103982731 A CN103982731 A CN 103982731A
- Authority
- CN
- China
- Prior art keywords
- wall
- outer sleeve
- sleeve
- flexible graphite
- gland
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/1017—Joints with sleeve or socket
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/1021—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations comprising an intermediate resilient element, e.g. a ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a maintenance-free self-sealing sleeve compensator, which comprises an outer sleeve, a core tube, a flexible graphite packing, a bolt and nut component, a gland and an injection filling valve, wherein the pipe end of the gland extends into a cavity formed by the inner wall of the outer sleeve, the left end face of an inner convex shoulder and the outer wall of the core tube so as to form a sealing cavity; the injection filling valve is fixedly connected to the outer wall of the outer sleeve and is communicated with the sealing cavity; the flexible graphite packing is filled in the sealing cavity; graphite sealing rings are arranged on two sides of the flexible graphite packing in the sealing cavity; the graphite sealing rings, the inner wall of the outer sleeve and the outer wall of the core tube are in interference fit, contact surfaces of the graphite sealing rings and the flexible graphite packing are conical surfaces, and the big diameter ends of the conical surfaces are toward the flexible graphite packing; the further improvements are that an elastic self-sealing structure is formed by a compression spring; a right guide bush and a left guide bush are respectively arranged on the inner wall of the inner convex shoulder of the outer sleeve and the inner wall of the gland; a wear-resistant coating is arranged on the outer wall of the core tube. The maintenance-free self-sealing sleeve compensator has the advantages of good self-sealing property, maintenance freeness, good abrasion resistance and long service life.
Description
Technical field
The present invention relates to pipeline compensator, relate in particular to a kind of filling type sleeve compensator.
Background technique
Filling type sleeve compensator can inject sealing compound from material feeding port depended on pressure, and can after-teeming under pipe network operation state, and maintenance does not stop production.Use for many years shows, the sealability that filling type overlaps simple compensator has certain change, and maintenance workload has certain minimizing, still undesirable but existing filling type overlaps the sealability of simple compensator, need to often safeguard, adjusts sealing state.Along with the fast development of concentrated supply of heating in the city, also more and more higher to the performance requirement of sleeve expansion joint, require good seal performance, after installation and operation, do not need to safeguard.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose the non-maintaining selfsealings sleeve expansion joint that a kind of selfsealings are good.
The present invention is achieved through the following technical solutions technical goal.
Non-maintaining selfsealings sleeve expansion joint, comprises that outer sleeve, core pipe, flexible graphite packing, bolt and nut component, gland and note fill out valve; Described core tube wall right-hand member is provided with anti-decylization; Described outer sleeve inner wall middle part is provided with internal shoulder; Described outer sleeve is linked on core pipe from left to right; Described gland is set in core pipe left end outer wall, by bolt and nut component, is connected with outer sleeve left end flange; Described gland pipe end stretches in the cavity of outer sleeve inner wall, internal shoulder left side, core tube wall formation, forms Seal cage; Described note is filled out the outer wall that valve is fixedly connected on outer sleeve, communicates with Seal cage; Plug dress flexible graphite packing in described Seal cage; Its improvements are: in described Seal cage, the both sides of flexible graphite packing are provided with graphite-seal ring; Described graphite-seal ring and outer sleeve inner wall, core tube wall Spielpassung, be conical surface with the surface of contact of flexible graphite packing, and the larger diameter end of conical surface is towards flexible graphite packing.
In said structure, on the bolt between gland left side and bolt and nut component nut, be set with Compress Spring, form elasticity self sealing structure.
In said structure, described outer sleeve internal shoulder inwall is provided with right guide bush; Described gland inwall is provided with left guide bush; Described left guide bush, right guide bush endoporus and core tube wall Spielpassung.
In said structure, described core tube wall is provided with wear resistant coating.
The present invention compared with prior art, has following good effect:
1. the end face that carbon packing ring contacts with flexible graphite packing is conical surface, the larger diameter end of conical surface is towards flexible graphite packing, in compaction process, stuffing box packing is subject to axially and lateral extrusion simultaneously like this, makes stuffing box packing tightly embrace core tube wall, significantly improves sealing reliability.
2. sleeve expansion joint was used after a period of time, and filler has wearing and tearing, and gland is under the effect of Compress Spring, and automatic impaction, remains sealability, without shutting down dismounting additional fillers.
3. outer sleeve internal shoulder inwall, gland inwall are provided with guide bush, lead on the one hand by front and back, have improved use stationarity; On the other hand, because the wear resistance of guide bush is better, improved the working life of compensator.
4. core tube wall is provided with wear resistant coating, has further improved the working life of compensator.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments below.
Non-maintaining selfsealings sleeve expansion joint shown in accompanying drawing, comprises that outer sleeve 1, core pipe 3, flexible graphite packing 6, bolt and nut component 8, gland 9 and note fill out valve 7; Core pipe 3 outer wall right-hand members are provided with anti-decylization 2; Outer sleeve 1 inwall middle part is provided with internal shoulder 1.1, and in the present embodiment, outer sleeve 1 internal shoulder 1.1 inwalls are provided with right guide bush 11, right guide bush 11 endoporus and core pipe 3 outer wall Spielpassung; Outer sleeve 1 is linked on core pipe 3 from left to right.
Gland 9 is set in core pipe 3 left end outer walls, by bolt and nut component 8, is connected with outer sleeve 1 left end flange, on the bolt between gland 9 left sides and bolt and nut component 8 nuts, is set with Compress Spring 10, forms elasticity self sealing structure.In the present embodiment, gland 9 inwalls are provided with left guide bush 4, left guide bush 4 endoporus and core pipe 3 outer wall Spielpassung.
Gland 9 pipe ends stretch in the cavity of outer sleeve 1 inwall, internal shoulder 1.1 left sides, the 3 outer walls formation of core pipe, form Seal cage; Note is filled out the outer wall that valve 7 is fixedly connected on outer sleeve 1, communicates with Seal cage; Plug dress flexible graphite packing 6 in Seal cage; In Seal cage, the both sides of flexible graphite packing 6 are provided with graphite-seal ring 5; Graphite-seal ring 5 and outer sleeve 1 inwall, core pipe 3 outer wall Spielpassung, be conical surface with the surface of contact of flexible graphite packing 6, and the larger diameter end of conical surface is towards flexible graphite packing 6.
Core pipe 3 outer walls are provided with wear resistant coating, and in the present embodiment, wear resistant coating is pressed against layer firmly for plating.
Claims (4)
1. a non-maintaining selfsealings sleeve expansion joint, comprises that outer sleeve (1), core pipe (3), flexible graphite packing (6), bolt and nut component (8), gland (9) and note fill out valve (7); Described core pipe (3) outer wall right-hand member is provided with anti-decylization (2); Described outer sleeve (1) inwall middle part is provided with internal shoulder (1.1); Described outer sleeve (1) is linked on core pipe (3) from left to right; Described gland (9) is set in core pipe (3) left end outer wall, by bolt and nut component (8), is connected with outer sleeve (1) left end flange; Described gland (9) pipe end stretches in the cavity of outer sleeve (1) inwall, internal shoulder (1.1) left side, the formation of core pipe (3) outer wall, forms Seal cage; Described note is filled out the outer wall that valve (7) is fixedly connected on outer sleeve (1), communicates with Seal cage; Plug dress flexible graphite packing (6) in described Seal cage; It is characterized in that: in described Seal cage, the both sides of flexible graphite packing (6) are provided with graphite-seal ring (5); Described graphite-seal ring (5) and outer sleeve (1) inwall, core pipe (3) outer wall Spielpassung, be conical surface with the surface of contact of flexible graphite packing (6), and the larger diameter end of conical surface is towards flexible graphite packing (6).
2. according to the non-maintaining selfsealings sleeve expansion joint described in claims 1, it is characterized in that: on the bolt between gland (9) left side and bolt and nut component (8) nut, be set with Compress Spring (10), form elasticity self sealing structure.
3. according to the non-maintaining selfsealings sleeve expansion joint described in claims 1 or 2, it is characterized in that: described outer sleeve (1) internal shoulder (1.1) inwall is provided with right guide bush (11); Described gland (9) inwall is provided with left guide bush (4); Described left guide bush (4), right guide bush (11) endoporus and core pipe (3) outer wall Spielpassung.
4. according to the non-maintaining selfsealings sleeve expansion joint described in claims 3, it is characterized in that: described core pipe (3) outer wall is provided with wear resistant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162130.5A CN103982731A (en) | 2014-04-22 | 2014-04-22 | Maintenance-free self-sealing sleeve compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162130.5A CN103982731A (en) | 2014-04-22 | 2014-04-22 | Maintenance-free self-sealing sleeve compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103982731A true CN103982731A (en) | 2014-08-13 |
Family
ID=51274816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410162130.5A Pending CN103982731A (en) | 2014-04-22 | 2014-04-22 | Maintenance-free self-sealing sleeve compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103982731A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221887A (en) * | 2015-11-01 | 2016-01-06 | 江苏新方圆电气设备制造有限公司 | High-performance sleeve compensator |
| CN106287095A (en) * | 2016-08-25 | 2017-01-04 | 南通艾迈特机械有限公司 | A kind of pipeline compensator |
| CN108105498A (en) * | 2018-02-01 | 2018-06-01 | 辽宁三三工业有限公司 | A kind of novel pipeline extension apparatus |
| CN109519543A (en) * | 2018-12-29 | 2019-03-26 | 武昌船舶重工集团有限公司 | A kind of swing type hydraulic machine |
| CN110671558A (en) * | 2019-09-14 | 2020-01-10 | 江苏永力管道有限公司 | Pressure-resistant explosion-proof equal-inner-diameter maintenance-free rotary compensator |
| CN113775845A (en) * | 2021-09-23 | 2021-12-10 | 江苏亚星波纹管有限公司 | Full-sealed sleeve compensator special for steam pipe network |
| CN113790950A (en) * | 2021-09-17 | 2021-12-14 | 长春市镨策试验仪器有限责任公司 | Pressure-bearing device for simulating high-energy-storage rock mass excavation unloading test and sealing method |
-
2014
- 2014-04-22 CN CN201410162130.5A patent/CN103982731A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221887A (en) * | 2015-11-01 | 2016-01-06 | 江苏新方圆电气设备制造有限公司 | High-performance sleeve compensator |
| CN106287095A (en) * | 2016-08-25 | 2017-01-04 | 南通艾迈特机械有限公司 | A kind of pipeline compensator |
| CN106287095B (en) * | 2016-08-25 | 2018-10-09 | 南通艾迈特机械有限公司 | A kind of pipeline compensator |
| CN108105498A (en) * | 2018-02-01 | 2018-06-01 | 辽宁三三工业有限公司 | A kind of novel pipeline extension apparatus |
| CN109519543A (en) * | 2018-12-29 | 2019-03-26 | 武昌船舶重工集团有限公司 | A kind of swing type hydraulic machine |
| CN110671558A (en) * | 2019-09-14 | 2020-01-10 | 江苏永力管道有限公司 | Pressure-resistant explosion-proof equal-inner-diameter maintenance-free rotary compensator |
| CN113790950A (en) * | 2021-09-17 | 2021-12-14 | 长春市镨策试验仪器有限责任公司 | Pressure-bearing device for simulating high-energy-storage rock mass excavation unloading test and sealing method |
| CN113775845A (en) * | 2021-09-23 | 2021-12-10 | 江苏亚星波纹管有限公司 | Full-sealed sleeve compensator special for steam pipe network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140813 |
|
| WD01 | Invention patent application deemed withdrawn after publication |